Melbury HE steel shell high efficiency pressure jet boiler
High efficiency steel shell power flame boiler.
Available in the following kW outputs (at 80/60°C): 530, 580, 630, 700, 800, 895, 1150, 1300, 1650, 1900, 2500, 3000, 3800, 4500, 5400, 6300, 7400, 8600 and 10,000kW.
Product information
- Achieve close load matching from the 19 model range, saving on running costs.
- Gain fuel savings from high efficiency performance.
- No minimum water flow eliminates the need for a shunt pump, simplifying the hydraulic system design and reducing energy consumption.
- Choice of fuel includes liquid biofuel for renewable energy solutions.
- Low NOx burners further improve the environmental credentials of the boiler.
- Large hinged door allows for easy access to maintain and service.
- Extensive back up and support from our team of experienced engineers across the UK.
- Long term commitment to spare parts.
- Installations using models over 1MW thermal input need to comply with the Medium Combustion Plant Directive - please contact us for more information.
Technical data
| Units | MHE530 | |
|---|---|---|
| Energy | ||
| Seasonal Efficiency DIN4702-8 at 75/60°C (Nat gas) | (%) gross | 85.14 |
| Seasonal Efficiency DIN4702-8 at 75/60°C (Oil) | (%) gross | 84.96 |
| Building Regulations (L2 seasonal Efficiency) at 80/60°C (Nat gas) | (%) gross | 84.91 |
| Building Regulations (L2 seasonal Efficiency) at 80/60°C (Oil) | (%) gross | 85.00 |
| Boiler output at 80/60°C - max | kW | 530 |
| Boiler output at 80/60°C - min (Nat gas) | kW | 95 |
| Boiler output at 80/60°C - min (Oil) | kW | 211 |
| Equivalent MCPD Output (emission compliance) - new installation (Nat gas) | kW | N/A |
| Boiler input (gross) - max (Nat gas) | kW | 643.5 |
| Boiler input (gross) - max (Oil) | kW | 642.4 |
| Boiler input net - max (Nat gas) | kW | 585 |
| Boiler input net - max (Oil) | kW | 584 |
| Boiler input net - min (Nat gas) | kW | 99 |
| Water | ||
| Water content | litres | 565 |
| System design flow rate at 20°C ΔT rise | l/s | 6.34 |
| Waterside pressure loss at 20°C ΔT rise | mbar | 11 |
| System design flow rate at 15°C ΔT rise | l/s | 12.68 |
| Waterside pressure loss at 15°C ΔT rise | mbar | |
| System design flow rate at 10°C ΔT rise | l/s | |
| Waterside pressure loss at 10°C ΔT rise | mbar | 42 |
| Water flow rate - min | l/s | No min flow rate |
| Water pressure operating - max | barg | 6 |
| Water pressure - min | barg | 0.55 |
| Water flow temperature - max | °C | 95 |
| Water flow temperature - min | °C | 70°C Nat Gas / 70°C Propane/ 60°C Oil |
| Water return temperature - min | °C | 60°C Nat Gas /60°C Propane/ 50°C Oil |
| Fuel | ||
| Flow rate for natural gas - max (Nat gas) | nm3/h | 61.5 |
| Fuel oil Flow - max (Oil) | kg/h | 49.3 |
| Flow rate for natural gas - min | nm3/h | 10 |
| Fuel oil Flow - min (Oil) | kg/h | 18.8 |
| Gas inlet pressure natural gas (G20) | mbar | Data on application |
| Flue | ||
| Flue gas volume at 20°C, 10% CO2, max EN303-3 (Nat gas) | kg/s | 0.24 |
| Flue gas volume at 20°C, 10% CO2, max EN303-4 (Oil) | kg/s | 0.25 |
| Flue gas volume at 20°C,10% CO2, min EN303-3 (Nat gas) | kg/s | 0.04 |
| Flue gas volume at 20°C,10% CO2, min EN303-4 (Oil) | kg/s | 0.10 |
| Flue gas temperature at 80/60°C - max (Nat gas) | °C | 209 |
| Flue gas temperature at 80/60°C - max (Oil) | °C | 208 |
| Flue gas temperature at 80/60°C - min (Nat gas) | °C | 95 |
| Flue gas temperature at 80/60°C - min (Oil) | °C | 120 |
| Exhaust gas losses at 80/60°C - max (Nat gas) | % | 9.1 |
| Exhaust gas losses at 80/60°C - max (Oil) | % | 9.0 |
| Standby loss @ 70°C | W | 781 |
| Combustion chamber resistance | mbar | 5.97 |
| Connections | ||
| Water flow connection | PN6 | DN100 |
| Water return connection | PN6 | DN100 |
| Gas inlet connection | Rc2" | |
| Safety valve connection | PN16 | n/a |
| Drain connection | R1 1/4" | |
| Flue diameter (O/D) - Nominal | mm | 200 |
| Flue hood drain connection | R3/4" | |
| Electrical supply for boiler | 230V 1Ph 50Hz | |
| Electrical supply for burner | 400V 3Ph 50Hz | |
| Shipping weight (excluding burner) - Approx. | kg | 1166 |
Ideal uses/applications
- New build projects.
- Housing developments and flats using district heating networks.
- Large commercial and public buildings including schools, hospitals, offices and hotels.
- Medium sized commercial and public buildings including schools, hospitals, offices and hotels.
- An environmentally friendly alternative to oil for rural locations without access to mains gas supply.
- Locations with substantial and continuous heating loads including hospitals, care homes and hotels.
Optional extras
- Choose from a wide range of service contracts to help maintain optimum performance.
- Book commissioning at the same time as placing your order for improved warranty terms.
- Flues available through our flue partner Jeremias UK
Often bought with
Case studies
Bournemouth and Poole College
Sector: Education
Project: One of the largest further-education establishments in the UK sourced its boilers locally for a refurbishment project across two main campuses.
Building: College refurbishment
Application: Space heating 3,170kW; indirect fired DHW
Learn more